Mobile mechanics are bad! Wanna give 0 star

Guys!!!! Please don't ever give your car to any mobile mechanic until you know how professional the person is. You better give it to auto repair centres and pay a few bucks extra. I recently had problems with my Hyundai atos and gave this guy. He asked me to replace so many parts and never give me back my old parts. Also after he realized he couldn't fix my car, he stopped answering my calls. I think some of them don't know their work. You might be lucky if he fixes your car. they just make your car more messed up. There's also high chances that they may ***** car parts. They lack competency, integrity and professionalism.